(19)
(11) EP 3 480 593 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.09.2019 Bulletin 2019/37

(43) Date of publication A2:
08.05.2019 Bulletin 2019/19

(21) Application number: 18204516.1

(22) Date of filing: 06.11.2018
(51) International Patent Classification (IPC): 
G01N 33/00(2006.01)
 G01N 21/3504(2014.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME
Designated Validation States:
KH MA MD TN

(30) Priority: 06.11.2017 JP 2017214121

(71) Applicant: HORIBA, Ltd.
Kyoto 601-8510 (JP)

(72) Inventors:
  • MIZUTANI, Naoto
    Kyoto, 601-8510 (JP)
  • KUSAKA, Takeshi
    Kyoto, 601-8510 (JP)
  • MOHARA, Haruhisa
    Kyoto, 601-8510 (JP)
  • SHINOHARA, Masayoshi
    Kyoto, 601-8510 (JP)

(74) Representative: Müller Hoffmann & Partner 
Patentanwälte mbB St.-Martin-Strasse 58
81541 München
81541 München (DE)

   


(54) CALIBRATION METHOD FOR GAS ANALYSIS APPARATUS, GAS ANALYSIS SYSTEM, AND PRESSURE VARYING DEVICE


(57) The present invention includes: connecting a pressure varying device to a sample gas introduction port and a gas discharge port of a gas analysis apparatus; depressurizing or pressurizing the sample gas introduction port and the gas discharge port by the pressure varying device; introducing calibration gas from a calibration gas introduction port of the gas analysis apparatus in a depressurized or pressurized state; and calculating a pressure correction factor for the gas analysis apparatus with use of a measurement result of the calibration gas by the gas analysis apparatus.







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